It was found that the external structure of the total mass of the skin looks light a Orange peel glaze of the temperature range and caused air bubbles that cause the pores within the structure of the gross light.
The external structure of the gross appearance of a light glaze on the surface of the sintering temperature Orange peel. And air bubbles inside the pore structure of lightweight aggregates.
Found that the external structure of light-weight aggregate has the characteristics of glaze surface model Orange peel of all temperatures burning. Air and foam in porous internal structure of light aggregate